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氨氮标准溶液,500mg/L in H2O
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艾杰尔Cleanert固相萃取柱500mg/500mg/6mL, 100 m2/g PC, 30/Pk
PC/PSA SPE column艾杰尔天津艾杰尔固相萃取Cleanert固相萃取柱PC/PSA SPE column500mg/500mg/6mL, 100 m2/g PC, 30/Pk
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Bis(7-methyl-1-octyl) Phthalate-3,4,5,6-d4 | MedChemExpress (MCE)
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Bis(8-methyl-1-nonyl) Phthalate-3,4,5,6-d4 | MedChemExpress (MCE)
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Benzyl butyl phthalate | 邻苯二甲酸丁苄酯 | MedChemExpress (MCE)
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SPE固相萃取柱 Carb/NH2 500mg/500mg 6 mL 30PK 石墨碳黑/氨基复合柱 78950
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SPE固相萃取柱 COLUMN PSA (乙二胺-N-丙基甲硅烷) 500mg/6mL 30PK
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Dibutyl phthalate | 邻苯二甲酸二丁酯 | MedChemExpress (MCE)
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Diisopropyl phthalate | 邻苯二甲酸二异丙酯 | MedChemExpress (MCE)
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SPE固相萃取柱 COLUMN PSA (乙二胺-N-丙基甲硅烷) 500mg/6mL 30PK 75240
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